Legal claims defining the scope of protection, as filed with the USPTO.
1. A method of operating a Long Term Evolution (LTE) system to disable Voice over LTE (VoLTE) service of a radio frequency band on a LTE base station (BS), the method comprising: in a Mobility Management Entity (MME) system, receiving VoLTE performance metrics that characterize VoLTE quality of a plurality of radio frequency bands on the LTE BS; in the MME system, processing the VoLTE performance metrics to determine if the VoLTE service on one of the radio frequency bands on the LTE BS should be disabled; in the MME system, receiving a create bearer request for a User Equipment (UE) transferred by a Serving Gateway (S-GW) and comprising a Quality-of-Service Class Identifier (QCI) value; and in the MME system, if the VoLTE service on one of the radio frequency bands on the LTE BS should be disabled, if the QCI value indicates a VoLTE session, and if the VoLTE session is on the one of the radio frequency bands, then transferring a reject message for delivery to the UE instructing the UE to use a different radio frequency band on the LTE BS for voice service.
2. The method of claim 1 wherein: processing the VoLTE performance metrics comprises processing blocked call data transferred by the LTE BS for the plurality of radio frequency bands to determine if the VoLTE service on one of the radio frequency bands on the LTE BS should be disabled.
3. The method of claim 1 wherein: processing the VoLTE performance metrics comprises processing capacity data transferred by the LTE BS for the plurality of radio frequency bands to determine if the VoLTE service on one of the radio frequency bands on the LTE BS should be disabled.
4. The method of claim 1 wherein: processing the VoLTE performance metrics comprises processing VoLTE Single Radio Voice Call Continuity (SRVCC) performance metrics for the plurality of radio frequency bands to determine if the VoLTE SRVCC service on one of the radio frequency bands on the LTE BS should be disabled; and transferring the reject message comprises transferring the reject message if the VoLTE SRVCC service on the one of the radio frequency bands on the LTE BS should be disabled, if the QCI value indicates a VoLTE session, if the VoLTE session is on the one of the radio frequency bands, and if the UE comprises an SRVCC UE.
5. The method of claim 1 wherein processing the VoLTE performance metrics comprises processing radio frequency noise data transferred by the LTE BS for the plurality of radio frequency bands to determine if the VoLTE service on one of the radio frequency bands on the LTE BS should be disabled.
6. The method of claim 1 wherein processing the VoLTE performance metrics comprises processing dropped call data transferred by the LTE BS for the plurality of radio frequency bands to determine if the VoLTE service on one of the radio frequency bands on the LTE BS should be disabled.
7. The method of claim 1 wherein processing the VoLTE performance metrics comprises processing buffer status data transferred by the LTE BS for the plurality of radio frequency bands to determine if the VoLTE service on one of the radio frequency bands on the LTE BS should be disabled.
8. The method of claim 1 further comprising, in the MME system, if the VoLTE service on the one of the radio frequency bands on the LTE BS should be disabled, if the QCI value indicates the VoLTE session, and if the VoLTE session is on the one of the radio frequency bands, then transferring a voice session message for the UE for delivery to the different radio frequency band on the LTE BS.
9. The method of claim 1 further comprising, in the MME system, if the VoLTE service on the one of the radio frequency bands on the LTE BS should be disabled, if the QCI value indicates the VoLTE session, and if the VoLTE session is on the one of the radio frequency bands, then transferring a bearer reject message indicating a session transfer for delivery to the S-GW.
10. The method of claim 1 further comprising: in the MME system, receiving additional VoLTE performance metrics that characterize the VoLTE quality of the plurality of the radio frequency bands on the LTE BS; in the MME system, processing the additional VoLTE performance metrics to determine if the VoLTE service on the one of the radio frequency bands on the LTE BS should be enabled; in the MME system, receiving another create bearer request for another UE transferred by the S-GW; and in the MME system, if the VoLTE service on the one of the radio frequency bands on the LTE BS should be enabled and if a QCI value indicates another VoLTE session, then transferring a create bearer acknowledgement for delivery to the S-GW.
11. A Mobility Management Entity (MME) system to disable Voice over LTE (VoLTE) service of a radio frequency band on a Long Term Evolution (LTE) base station (BS), the system comprising: a data communication interface configured to receive VoLTE performance metrics that characterize VoLTE quality for a plurality of radio frequency bands on the LTE BS and transmit and receive signaling messages over a communication network; and a processing system configured to process the VoLTE performance metrics obtained through the data communication interface to determine if VoLTE service on one of the radio frequency bands on the LTE BS should be disabled, and if VoLTE should be disabled on one of the radio frequency bands on the LTE BS, if a create bearer request obtained through the data communication interface has a Quality-of-Service Class Identifier (QCI) value indicating a VoLTE session for a UE, and if the VoLTE session is on the one of the radio frequency bands, then transfer a reject message for delivery to the UE instructing the UE to use a different radio frequency band on the LTE BS for voice service.
12. The MME system of claim 11 wherein: the processing system configured to process the VoLTE performance metrics comprises the processing system configured to process blocked call data transferred by the LTE BS for the plurality of radio frequency bands to determine if the VoLTE service on one of the radio frequency bands on the LTE BS should be disabled.
13. The MME system of claim 11 wherein: the processing system configured to process the VoLTE performance metrics comprises the processing system configured to process capacity data transferred by the LTE BS for the plurality of radio frequency bands to determine if the VoLTE service on one of the radio frequency bands on the LTE BS should be disabled.
14. The MME system of claim 11 wherein: the processing system configured to process the VoLTE performance metrics comprises the processing system configured to process VoLTE Single Radio Voice Call Continuity (SRVCC) performance metrics for the plurality of radio frequency bands to determine if the VoLTE SRVCC service on one of the radio frequency bands on the LTE BS should be disabled; and the processing system configured to transfer the reject message comprises the processing system configured to transfer the reject message if the VoLTE SRVCC service on the one of the radio frequency bands on the LTE BS should be disabled, if the QCI value indicates a VoLTE session, if the VoLTE session is on the one of the radio frequency bands, and if the UE comprises an SRVCC UE.
15. The MME system of claim 11 wherein the processing system configured to process the VoLTE performance metrics comprises the processing system configured to process radio frequency noise data transferred by the LTE BS for the plurality of radio frequency bands to determine if the VoLTE service on one of the radio frequency bands on the LTE BS should be disabled.
16. The MME system of claim 11 wherein the processing system configured to process the VoLTE performance metrics comprises the processing system configured to process dropped call data transferred by the LTE BS for the plurality of radio frequency bands to determine if the VoLTE service on one of the radio frequency bands on the LTE BS should be disabled.
17. The MME system of claim 11 wherein the processing system configured to process the VoLTE performance metrics comprises the processing system configured to process a processing buffer status data transferred by the LTE BS for the plurality of radio frequency bands to determine if the VoLTE service on one of the radio frequency bands on the LTE BS should be disabled.
18. The MME system of claim 11 wherein the processing system is further configured to, if the VoLTE service on the one of the radio frequency bands on the LTE BS should be disabled, if the QCI value indicates the VoLTE session, and if the VoLTE session is on the one of the radio frequency bands, then transfer a voice session message for the UE for delivery to the different radio frequency band on the LTE BS.
19. The MME system of claim 11 wherein the processing system is further configured to, if the VoLTE service on the one of the radio frequency bands on the LTE BS should be disabled, if the QCI value indicates the VoLTE session, and if the VoLTE session is on the one of the radio frequency bands, then transfer a bearer reject message indicating a session transfer for delivery to an S-GW of the UE.
20. The MME system of claim 11 wherein the processing system is further configured to process additional VoLTE performance metrics obtained through the data communication interface to determine if VoLTE service on the one of the radio frequency bands on the LTE BS should be enabled, and if VoLTE should be enabled on the one of the radio frequency bands on the LTE BS and if a create bearer request obtained through the data communication interface has a QCI value indicating a VoLTE session for another UE, transfer a create bearer acknowledgement for delivery to an S-GW of the other UE.
Unknown
May 17, 2016
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